Rectangular Elements

An object's rectangular elements are the position and velocity components relative to the object's parent.

The Orbital Position is the vector that describes the position relative to the object's parent.
The Orbital Velocity is the vector that describes the velocity relative to the object's parent.

The rectangular elements are as follows.

Orbital Position X is the x-coordinate of the orbital position, and has the symbol rx.
The x-coordinate of the orbital position may be any number.
Orbital Position Y is the y-coordinate of the orbital position, and has the symbol ry.
The y-coordinate of the orbital position may be any number.
Orbital Position Z is the z-coordinate of the orbital position, and has the symbol rz.
The z-coordinate of the orbital position may be any number.
Orbital Velocity X is the x-coordinate of the orbital velocity, and has the symbol vx.
The x-coordinate of the orbital velocity may be any number.
Orbital Velocity Y is the y-coordinate of the orbital velocity, and has the symbol vy.
The y-coordinate of the orbital velocity may be any number.
Orbital Velocity Z is the z-coordinate of the orbital velocity, and has the symbol vz.
The z-coordinate of the orbital velocity may be any number.